CVE-2025-2699: ContentTools Cross-Site Scripting Vulnerability

MODERATE
Advisory Identifier: GHSA-4f2v-2gpq-qhjg
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CVSS 3.5
CWE-79
Published
Advisory Summary

CVE-2025-2699 is a MODERATE (CVSS 3.5) cross-site scripting vulnerability (CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')) affecting ContentTools libraries in the npm ecosystem. The issue involves getmeuk contenttools cross-site scripting (xss). Remediation is available in the latest vendor maintenance releases.

CVE-2025-2699 at a Glance

CVE Identifier CVE-2025-2699
GHSA Identifier GHSA-4f2v-2gpq-qhjg
Severity MODERATE
CVSS v3.1 Base Score 3.5
CWE Classification CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting')
Affected Product ContentTools
Package Ecosystem npm
Published Date
Last Updated

Security Impact

CVSS: 3.5

The security impact metrics below are parsed directly from the CVSS v3.1 vector string (CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N).

Attack Vector Network (AV:N)
Attack Complexity Low (AC:L)
Privileges Required Low (PR:L)
User Interaction Required (UI:R)
Scope Unchanged (S:U)
Confidentiality None (C:N)
Integrity Low (I:L)
Availability None (A:N)

How to Fix CVE-2025-2699

To remediate this vulnerability, upgrade all affected ContentTools dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

ContentTools fixed: Latest secure release 
npm install ContentTools@Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

npm ls ContentTools

How to Check if You Are Affected

To determine whether your Node.js application is affected by CVE-2025-2699, inspect your project dependencies using npm:

npm ls ContentTools

Analyze the terminal output to locate any version of ContentTools in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than the patched release), your application is affected.

Note: The npm ls ContentTools command inspects dependencies declared in your package.json and lockfile; it does not perform automated runtime dynamic scanning.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting'), where the product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users. In ContentTools, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

A vulnerability was found in GetmeUK ContentTools up to 1.6.16. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Image Handler. The manipulation of the argument onload leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.

CVE-2025-2699 Affected ContentTools Versions

1 component(s)
Product / Package Ecosystem Affected Versions Fixed Version
ContentTools
npm/ContentTools
npm
≤ 1.6.16

References

NVD — CVE-2025-2699 NVD
https://nvd.nist.gov/vuln/detail/CVE-2025-2699
ContentTools Source Repository REPOSITORY
https://gist.github.com/Masamuneee/657f2e2b0eb5bf9b0d4dbb79f00dac37
ContentTools Source Repository REPOSITORY
https://github.com/GetmeUK/ContentTools
vuldb.com/ WEB
https://vuldb.com/?ctiid.300716
vuldb.com/ WEB
https://vuldb.com/?id.300716
vuldb.com/ WEB
https://vuldb.com/?submit.515864

Frequently Asked Questions

What is CVE-2025-2699?
CVE-2025-2699 is a security vulnerability in ContentTools involving GetmeUK ContentTools Cross-Site Scripting (XSS) under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting').
Which ContentTools versions are affected?
Affected versions include releases prior to current release patches across affected packages: ContentTools.
What version fixes CVE-2025-2699?
Upgrading to current release patches (or the latest patched release for your respective branch) resolves the vulnerability.
Is ContentTools affected?
Yes, ContentTools is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What is the CVSS score of CVE-2025-2699?
CVE-2025-2699 has a CVSS v3.1 base score of 3.5 (MODERATE) with vector string CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N.
What CWE is associated with CVE-2025-2699?
CVE-2025-2699 is classified under CWE-79: Improper Neutralization of Input During Web Page Generation ('Cross-site Scripting') (The product does not neutralize or incorrectly neutralizes user-controllable input before it is placed in output that is used as a web page that is served to other users.).
How can I check npm dependencies for CVE-2025-2699?
Run the dependency tree command: 'npm ls ContentTools'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-4f2v-2gpq-qhjg",
  "modified" : "2025-03-24T21:24:05Z",
  "published" : "2025-03-24T09:34:03Z",
  "aliases" : [ "CVE-2025-2699" ],
  "summary" : "GetmeUK ContentTools Cross-Site Scripting (XSS)",
  "details" : "A vulnerability was found in GetmeUK ContentTools up to 1.6.16. It has been rated as problematic. Affected by this issue is some unknown functionality of the component Image Handler. The manipulation of the argument onload leads to cross site scripting. The attack may be launched remotely. The exploit has been disclosed to the public and may be used. The vendor was contacted early about this disclosure but did not respond in any way.",
  "severity" : [ {
    "type" : "CVSS_V3",
    "score" : "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:U/C:N/I:L/A:N"
  }, {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:P/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "npm",
      "name" : "ContentTools"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.6.16"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2025-2699"
  }, {
    "type" : "WEB",
    "url" : "https://gist.github.com/Masamuneee/657f2e2b0eb5bf9b0d4dbb79f00dac37"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/GetmeUK/ContentTools"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?ctiid.300716"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?id.300716"
  }, {
    "type" : "WEB",
    "url" : "https://vuldb.com/?submit.515864"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-79" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2025-03-24T21:24:05Z",
    "nvd_published_at" : "2025-03-24T08:15:12Z"
  }
}